Movie events on the 25th December

Henry II's entire family plots against him taking a new wife and thus disinheriting his sons, but both his and his family's plots fail, leaving all at status quo. (Chinon (but historically inaccurate)) (The Lion in Winter)

Grey remains in orbit aboard the Freedom Command module while Walker and Anderson land on the moon in the lunar module Liberty. While planting one of the detectors, the pair take moon rock samples. After returning to Liberty, the pair hear noises outside and a camera captures a small rock moving nearby. Houston claims the noises are interference from the ICBM detectors. Anderson finds a rock sample on the floor of Liberty despite having secured the samples. During further lunar exploration they discover footprints that lead them to a bloodstained, functioning Soviet LK lander, and a dead cosmonaut in a nearby crater. Walker queries Houston about the Soviet presence but is told only to continue with the mission. (Apollo 18)

Survivors Kelly Presley and Leigh Colvin are taken to a hospital. Agnes stabs Leigh in the neck, killing her. Kelly kills Agnes with a defibrillator and pushes Billy downstairs, where he is impaled on the tip of a Christmas tree. (Black Christmas)